x3 Monitors, Vesa mount
Tv, Tv mount
Desk
"gaming chair"
By gaming gear I'm gonna assume you want perephirals and room decoration
Mouse pad
Mouse+keyboard
Usb splitter
Room lights
PC itself, I'm assuming you want a prebuilts since your asking for people to make you a list of room recommendations but here ya go.
Mobo+CPU combo
CPU cooler
Gpu
Storage
Memory
Psu
Fan set #1 Fan set #2 Fan controller
PC case
Sorry if the links go to to the wrong place work was long and I'm bouta pass out
That's alot less than 6000 you can probably get speakers/ headphones, sound dampening and paint your room.
The Mobo also comes with stickers and door hangar that says "game on don't come in" if your into that which I'm sure you are cause you sound like your 12